I'm not quite sure i understood at all, how player's involvement affects this troubleshooting process!
if a 'tech' copy the content information from a problematic profile, to a brand new profile, no one would have access to that new profile except the 'tech' who is troubleshooting.
that 'tech' can test it 100s of time,to make sure it is working properly on his side....before contacting back the user,informing a new account has been created, by emulating his previous account,based on as much data was retrievable,and provide user the new account info to login.